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                   8 Watt Audio Amp

                    fm transmitter

                    p Amp Radio *

                    FET Audio Mixer

                    Transistor Organ

                    50 Watt Amplifier

                    8 Note Tune Player   

                    22 Watt Audio Amplifier

                    Crystal Radio  

                    Digital Volume Control  

                    Sound Level Meter  

                    3 Watt FM T  Transmitter  

                    Microphone Mixer

                    Tone Control

                    Guitar Fuzz Effect  

                    Stereo Tube Amplifier  

                    Electronic Stethoscope